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Phonological process analysis is currently the most widely used analytical procedure for the investigation of phonological development in children. This study investigated the phonological processes in four Brazilian children with phonological disorders. The purpose of the study was to identify the phonological processes, their prevalence, strength and their relative contribution to the intelligibility of the subjects' speech. Results reveal differential effects of sequential and substitution processes and of the consistency/variability of the application of those processes. Results also confirm the common patterns reported in the literature on children with phonological disorders, such as consonant cluster reduction and simplifications of liquids and fricatives. Results also show, however, the existence of some differences, which we believe are due to language-specific features.

Given the demographic changes currently taking place in the United States, speech-language pathologists increasingly are being asked to provide speech and language services to bilingual speakers. The acquisition of more than one language presents unique challenges to speech-language pathologists in the assessment of and intervention for phonological disorders. This paper provides speech-language pathologists information about common and uncommon phonological patterns across a variety of languages, the influence of the sound patterns of one language on another, and guidelines for assessment and intervention.

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